In the raw heart rate CSV export, a duration of [X,Y,Z] with times of [A,B,C] seconds mean a heart rate of X for A seconds, then a heart rate of Y for B seconds, and then a heart rate of Z for C seconds.

Notes:

Some data are specific to the Withings product you are using.

Distance and weight data are exported according to the unit selected in your account settings. Note that all temperature measurements are exported in Celsius.